I have a 1977 Dodge Xplorer 307 - 400 / 8 cylinder motor. She's just the Xplorer - not Xtravaganza or anything. I'm only the 3rd owner and she only has.... ready..... 42K miles! It was GIVEN to me by my mom and stepdad. I am about to be living in her (hopefully by this weekend). I just learned...